The main fuels used in history form a nearly exact sequence, from ones having less hydrogen to ones having more. Wood and charcoal were the earliest fuels, and have only a little hydrogen. Much of their burning is wasted in pouring out great gusts of carbon, which was needed to build up the tree from which the wood came, but doesn’t do much for the user burning that wood.

Coal has more hydrogen, and its burning can be cleaner. Oil – which dominated next – has yet more hydrogen per unit of carbon; natural gas has even more, and its burning is the cleanest and most efficient of them all. The trend line points pretty strongly to a pure hydrogen economy – but when that will occur is in the hands not of the scientists, but our wise political masters.

Alternative methods using biological extraction have proven successful – but they still don’t tackle the fundamental problem of where the energy to extract the hydrogen comes from. With oil running out and our current industrial infrastructure reliant on dumping stored carbon dioxide into the atmosphere this is the problem that needs to be solved.

And if the basic problem is getting energy, wouldn’t it be better to concentrate on that and, once this problem is solved, use this source of hydrogen-producing energy to produce petroleum via the Fischer-Tropsch process and save £X trillions by avoiding upgrading our entire transport infrastructure to use hydrogen tanks and fuel cells?

My conclusion: every penny of research currently being poured into the hydrogen economy should be diverted into developing cleaner nuclear fission and synthetic petroleum fuel combined with hybrid electric-petrol vehicles.

NEW FICTION: WORLD IN PROGRESS by Lori Ann White: He vaults effortlessly to the smooth countertop and turns to the sea of faces. It’s soapbox time, ready to rant, but he spots a wake in the sea, Bouncer Babe tossing patrons aside, closing fast. He slaps at his waist, and feedback screams through the club. Everyone, including the bouncer, just–stops.

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